Journal
CHEMISTRY LETTERS
Volume 44, Issue 9, Pages 1251-1253Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.150338
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Funding
- National High Technology Research and Development Program of China (863 Program) [2012AA030313]
- National Natural Science Foundation of China [21076103, 21474052, 21176122]
- Natural Science Foundation of Jiangsu Province [BK20140934]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Qing Lan Project
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In this work, we report a one-step hydrothermal reaction to fabricate fluorescent carbon dots (CDs) using polyimide (PI) as precursor. The as-prepared CDs exhibit bright blue-green fluorescence and a favorable quantum yield of ca. 20%. Also, the fluorescent CDs show both pH dependence and an ion response towards metal ions, as well as a fluorescence shift after being passivated by various organic amines. In addition, the CDs can be used as fluorescent inks to achieve fluorescent patterns for promising applications in anticounterfeit and optoelectronic devices.
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